Classifications

• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
  • C07C233/00—Carboxylic acid amides
  • C07C233/64—Carboxylic acid amides having carbon atoms of carboxamide groups bound to carbon atoms of six-membered aromatic rings
  • C07C233/67—Carboxylic acid amides having carbon atoms of carboxamide groups bound to carbon atoms of six-membered aromatic rings having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by singly-bound oxygen atoms
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
  • A61Q19/00—Preparations for care of the skin
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K31/00—Medicinal preparations containing organic active ingredients
  • A61K31/185—Acids; Anhydrides, halides or salts thereof, e.g. sulfur acids, imidic, hydrazonic or hydroximic acids
  • A61K31/19—Carboxylic acids, e.g. valproic acid
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K31/00—Medicinal preparations containing organic active ingredients
  • A61K31/21—Esters, e.g. nitroglycerine, selenocyanates
  • A61K31/215—Esters, e.g. nitroglycerine, selenocyanates of carboxylic acids
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
  • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
  • A61K8/40—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing nitrogen
  • A61K8/44—Aminocarboxylic acids or derivatives thereof, e.g. aminocarboxylic acids containing sulfur; Salts; Esters or N-acylated derivatives thereof
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
  • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
  • A61K8/40—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing nitrogen
  • A61K8/44—Aminocarboxylic acids or derivatives thereof, e.g. aminocarboxylic acids containing sulfur; Salts; Esters or N-acylated derivatives thereof
  • A61K8/447—Aminocarboxylic acids or derivatives thereof, e.g. aminocarboxylic acids containing sulfur; Salts; Esters or N-acylated derivatives thereof containing sulfur
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P13/00—Drugs for disorders of the urinary system
  • A61P13/02—Drugs for disorders of the urinary system of urine or of the urinary tract, e.g. urine acidifiers
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P15/00—Drugs for genital or sexual disorders; Contraceptives
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
  • A61Q7/00—Preparations for affecting hair growth
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
  • C07C235/00—Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by oxygen atoms
  • C07C235/42—Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by oxygen atoms having carbon atoms of carboxamide groups bound to carbon atoms of six-membered aromatic rings and singly-bound oxygen atoms bound to the same carbon skeleton
  • C07C235/44—Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by oxygen atoms having carbon atoms of carboxamide groups bound to carbon atoms of six-membered aromatic rings and singly-bound oxygen atoms bound to the same carbon skeleton with carbon atoms of carboxamide groups and singly-bound oxygen atoms bound to carbon atoms of the same non-condensed six-membered aromatic ring
  • C07C235/56—Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by oxygen atoms having carbon atoms of carboxamide groups bound to carbon atoms of six-membered aromatic rings and singly-bound oxygen atoms bound to the same carbon skeleton with carbon atoms of carboxamide groups and singly-bound oxygen atoms bound to carbon atoms of the same non-condensed six-membered aromatic ring having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a six-membered aromatic ring

Definitions

• This invention is related to novel compounds having an inhibitory activity on 5 ⁇ -reductase of the following general formula: ##STR4## [wherein all of the symbols are the same meaning as hereafter defined.]
• testosterone androgenic hormone played an important role on the generation of hairs.
• testosterone biosynthesized in testis is converted into dihydrotestosterone by 5 ⁇ -reductase existed in hair follicle, sebaceous gland etc. at the head.
• dihydrotestosterone reduces the activities of adenyl cyclase remarkably.
• dihydrotestosterone is related to the hypertrophy of prostate.
• Cowan et al reported that large amount of dihydrotestosterone existed in the prostate of prostatic hypertrophy-patient (See J. Steroid Biochemistry, 11, 609 (1979)).
• R 3a represents hydrogen atom, halogen atom etc.
• R 5a , R 6a represent independently, hydrogen atom, or halogen atom, or straight or branched chain alkyl, alkenyl or alkynyl group of from 1 to 20 carbon atom(s) which may be replaced optional one, two, three, four or five carbon atom(s) by oxygen atom, sulfur atom, halogen atom, nitrogen atom, benzene ring, thiophene ring, naphthalene ring, carbocyclic ring of from 4 to 7 carbon atoms, carbonyl group, carbonyloxy group, hydroxy group, carboxy group, azido group, nitro group
• R 8a represents hydrogen atom or straight or branched chain alkyl group of from 1 to 6 carbon atom(s)
• U represents oxygen atom or sulfur atom
• R 5a (or R 6a ) group takes phenylalkoxy group which may be substituted, the group will correspond to the R 2 group in the compounds of the present invention. In this case, R 6a (or R 5a ) rests, as one substituent.
• X b represents, oxygen atom or sulfur atom, and m, n, p, q each represent zero or one.
• R 1c -R 4c each represent alkyl or alkoxy group of from 1 to 4 carbon atom(s), trifluoromethyl group or halogen atom, n represents 2 or 3, m, n, p, q each represents 0 or 1.
• R 1d represents hydrogen atom or methyl group
• R 2d represents methyl or ethyl group
• a d ring may be substituted methyl, halogen atom etc.
• B d ring may be substituted by one or two of nitro group, trifluoromethyl group, chlorine atom, fluorine atom or alkyl or alkoxy group of from 1 to 4 carbon atom(s).
• Patent publication ⁇ 12 discloses compounds shown in the following general formula (partial extraction): ##STR9## [wherein, A e represents hydrogen atom, phenyl or phenoxy group, n represents 3 ⁇ 10, R 1e represents hydrogen atom or lower alkoxy group, X 1 represents --CONH-- etc., B e represents ##STR10## etc. (wherein, R 2 represents hydrogen atom, halogen atom, nitro group etc.) X 2 represents --O--Y 4 -- etc. (wherein Y 4 represents alkylene group of from 1 to 6 carbon atom(s) etc.), and D represents carboxy group, alkoxycarbonyl group etc.].
• R 1e group in the above formula of the patent publication ⁇ 12 corresponds to two R 1 group in the general formula (I) of the present invention. But, they have distinct structures each other (substituent(s), number of the substituent(s), position of the substituent(s)), in i.e., R 1e group in the compounds of patent publication ⁇ 12 represents hydrogen atom or alkoxy group, and two R 1 s in the compounds of the present invention do represent dimethyl, dichloro, cyclic ring or benzene ring.
• the present invention is related to
• R' represents hydrogen atom or alkyl group of from 1 to 4 carbon atom(s)
• A represents oxygen atom, sulfur atom or sulfinyl (SO) group
• two R 1 s represent methyl groups or chlorine atoms at the same time or cyclopentane, cyclohexane or benzene ring when taken together with the carbon atoms of the benzene ring to which they are attached
• R 2 represents a group of general formula: ##STR12##
• B represents oxygen atom, sulfur atom or a group of general formula: NR 11 (wherein R 11 represents hydrogen atom or alkyl group of from 1 to 4 carbon atom(s)),
• R 3 , R 4 , R 5 , R 6 , R 7 and R 8 represent, independently, hydrogen atom, alkyl group of from 1 to 4 carbon atom(s), halogen atom, trifluor
• n 0 or 1
• n an integer of from 1 to 5
• R 9 and R 10 represent, independently, hydrogen atom, alkyl group of from 1 to 5 carbon atom(s) or a group of general formula: ##STR13## (wherein R 12 , R 13 , R 14 and R 15 represent, independently, hydrogen atom, alkyl group of from 1 to 4 carbon atom(s), halogen atom, trifluoromethyl group or cyclobutylmethyl group, and l represents an integer of from 1 to 4.). With the proviso that R 9 and R 10 do not represent hydrogen atoms at the same time; and non-toxic salts thereof.
• alkyl or alkylene group includes straight and branched ones
• the present invention includes isomers generated by the existence of asymmetric carbon atom e.g. the existence of branched alkyl group.
• alkyl group of from 1 to 4 carbon atom(s) represented by R', R 3 -R 8 , and R 11 -R 15 means methyl, ethyl, propyl and butyl groups and isomeric groups thereof.
• alkyl group of from 1 to 5 carbon atom(s) represented by R 9 and R 10 means alkyl groups described above including pentyl group and isomeric groups.
• halogen atom represented by R 3 -R 8 and R 11 -R 15 means fluorine, chlorine, bromine and iodine atoms.
• R 2 of the general formula (I) general formula --C n H 2n -- means straight or branched chain alkylene group of from 1 to 4 carbon atom(s). Concretely, it means methylene, ethylene, trimethylene and tetramethylene groups and isomeric groups thereof.
• R 2 of the general formula (I) general formula --C l H 2l -- means straight or branched chain alkylene group of from 1 to 5 carbon atom(s). Concretely, it means alkylene groups described above including pentamethylene group and isomeric groups thereof.
• Non-toxic and water-soluble salts are preferable.
• Suitable salts are follows: salts of alkaline metal (sodium, potassium etc.), salts of alkaline earth metal (calcium, magnesium etc.), ammonium salts, salts of pharmaceutically acceptable organic amine (tetramethyl)ammonium, triethylamine, methylamine, dimethylamine, cyclopentylamine, benzylamine, phenethylamine, piperidineamine, monoethanolamine, diethanolamine, tris(hydroxymethyl)aminomethane, lysine, arginine, N-methyl-D-glucamine etc.).
• compounds of general formula: ##STR14## [wherein A' represents oxygen atom or sulfur atom, R represents a group of general formula: ##STR15## (wherein each symbols are the same meaning as defined hereinbefore.), B' represents oxygen atom or sulfur atom, and the other symbols are the same meaning as defined hereinbefore.] may be prepared by condencing a carboxylic acid of general formula: ##STR16## [wherein all of the symbols are the same meaning as defined hereinbefore.] with an amine of general formula: ##STR17## [wherein R" represents alkyl group of from 1 to 4 carbon atom(s) and the other symbols are the same meaning as defined hereinbefore.] and further, if desired, subjecting to hydrolysis the resulting compound.
• Reaction to form amide bond with a carboxylic acid and an amine is known, and it may be carried out, for example, by
• Method using mixed acid anhydride may be carried out, for example, by reacting a carboxylic acid of the general formula (II) and an acid halide (pivaloyl chloride, tosyl chloride, mesyl chloride, etc. or an acid derivative (ethyl chloroformate, isobutyl chloroformate, etc.) in the presence of a tertiary amine (pyridine, triethylamine, picoline etc.) in an inert organic solvent (chloroform, methylene chloride diethyl ether, THF etc.) or without solvent, at a temperature of from 0° C. to 40° C. to give a mixed acid anhydride. And the mixed acid anhydride obtained is reacted with an amine of the general formula (III) in an inert organic solvent (described above), at a temperature of from 0° C. to 40° C.
• an acid halide pivaloyl chloride, tosyl chloride,
• Method using acid halide may be carried out, for example, by reacting a carboxylic acid of the general formula (II) and the acid halide (thionyl chloride, oxalyl chloride etc.) in the inert organic solvent (described above) or without solvent, at a temperature of from 20° C. to refluxing temperature of the solvent used to give an acid halide. And the acid halide obtained is reacted with an amine of the general formula (III) in the presence or absence of the tertiary amine (described above) in the inert organic solvent (described above), at a temperature of from 0° C. to 40° C.
• Method using a condensing agent such as DCC may be carried out, for example, by reacting a carboxylic acid of the general formula (II) and an amine of the general formula (III), using DCC etc. in the presence or absence of the tertiary amine (described above), in the inert organic solvent (described above) or without solvent, at a temperature of from 0° C. to 40° C.
• a condensing agent such as DCC (dicyclohexylcarbodiimide)
• the reactions of (A), (B) and (C) are carried out, preferably, in an atmosphere of inert gas (argon, nitrogen etc.) and on anhydrous condition.
• inert gas argon, nitrogen etc.
• Conversion of an ester into corresponding acid is known, and it may be carried out, for example, using an aq. solution of alkali (lithium hydroxide, potassium hydroxide, sodium hydroxide, potassium carbonate, sodium carbonate etc.) in a water-miscible organic solvent (dimethoxyethane, THF, dioxane, ethanol, methanol, DMSO etc.).
• alkali lithium hydroxide, potassium hydroxide, sodium hydroxide, potassium carbonate, sodium carbonate etc.
• a water-miscible organic solvent diimethoxyethane, THF, dioxane, ethanol, methanol, DMSO etc.
• compounds of general formula: ##STR18## [wherein all of the symbols are the same meaning as defined hereinbefore.] may be prepared by oxidizing a compound, i.e. compounds of the general formula (I) wherein A' is sulfur atom, of general formula: ##STR19## [wherein all of the symbols are the same meaning as defined hereinbefore.]
• Oxidation is known, and it may be carried out, for example, using an aq. solution of periodate (sodium periodate etc.), in a water-miscible organic solvent (methanol, ethanol, THF etc.), at a temperature of from 0° C. to 50° C.
• periodate sodium periodate etc.
• methanol, ethanol, THF etc. a water-miscible organic solvent
• N-alkylation N-alkylation reactions
• alkali potassium carbonate, sodium hydrocarbonate etc.
• a water miscible organic solvent methyl ethyl ketone, acetonitrile, propanol, DMF etc.
• R 20 alkyl group of from 1 to 4 carbon atom(s).
• products may be purified by conventional methods, for example, distillation at atmospheric or reduced pressure, high performance liquid chromatography, thin layer chromatography using silica gel or magnesium silicate or washing or recrystallization. Purification may be carried out after each reactions or a series of reactions.
• the compounds of the present invention showed activities as in the following Table I, with the test system described hereafter.
• test was carried out by making reference to the method of J. Shimazaki et al [See Endocrinical. Japon., 18, 179 (1971)].
• the precipitate was suspended into the buffer solution described above (10 ml), and the suspension was centrifuged at 3000 r.p.m. for 5 mins. The resulting precipitated was suspended in the buffer solution (3 ml) described above and was used as a sauce of enzyme.
• a reaction mixture (total volume 0.1 ml) of [4-C 14 ]-testosterone (1.5 n mol, 1.5 ⁇ 10 5 cpm) NADPH (0.5 ⁇ mol) enzyme solution (0.03 ml) described above and several kinds of concentration of the compounds in the present invention was incubated for 60 mins at 37° C. Enzyme reaction was quenched by addition of a mixture (1.0 ml) of diethyl ether, petroleum ether and acetic acid (80:20:1), and the mixture was centrifuged at 3000 r.p.m. for 5 mins. The supernatant (200 ⁇ l) was spotted on silica gel thin layer plate. The spot on the plate was developed with a mixture of chloroform, methanol and acetic acid (99:0.8:0.2). Radioactivity of dihydrotestosterone generated on the plate was measured by TLC scanner of radio-autography and inhibitory ratio was calculated.
• the compounds of the present invention may be considered to be sufficiently safe and suitable for pharmaceutical used.
• To inhibit 5 ⁇ -reductase is to prevent the excess generation of dihydrotestosterone, described before, and therefore be useful for prevention and/or treatment for alopecia such as male type alopecia, acne and prostatic hypertrophy in animals including human beings, especially human beings.
• the compounds of the present invention possess a inhibitory activity on 5 ⁇ -reductase in vitro, so it is expected to be useful for prevention and/or treatment of alopecia such as male type alopecia, acne and prostatic hypertrophy.
• the compounds of the present invention may normally by administered systemically (mainly in the case of prevention and/or treatment prostatic hypertrophy) or partially (mainly in the case of prevention and/or treatment of alopecia and acne), usually by oral or parenteral administration.
• the doses to be administered are determined depending upon age, body weight, symptom, the desired therapeutic effect, the route of administration, and the duration of the treatment etc.
• the doses per person per dose are generally between 1 mg and 1 g, by oral administration, up to several times per day, and between 100 ⁇ g and 100 mg, by parenteral administration (preferably intravenous administration) up to several times per day.
• the doses per person per dose are generally between 10 ⁇ g and 50 mg, by dermal administration up to several times per day.
• the doses to be used depend upon various conditions. Therefor, there are cases in which doses lower than or greater than the ranges specified above may be used.
• the compounds of the present invention was administered as solid compositions, liquid compositions and other compositions for oral administration and injections, external compositions and suppositories etc. for parenteral administration.
• compositions for oral administration include compressed tablets, pills, dispersible powders, capsules, and granules.
• one or more of the active compound(s) is or are, admixed with at least done inert diluent (lactose, mannitol, glucose, hydroxypropylcellulose, microcrystalline cellulose, starch, polyvinylpyrrolidone, magnesium metasilicate alminate etc.).
• the compositions may also comprise, as is normal practice, additional substances other than inert diluents: e.g. lubricating agents (magnesium stearate etc.), disintegrating agents (cellulose calcium gluconate etc.), and assisting agent for dissolving (glutamic acid, aspertic acid etc.) stabilizing agent (lactose etc.).
• the tablets or pills may, if desired, be coated with gastric or enteric material (sugar, gelatin, hydroxypropylcellulose or hydroxypropylmethyl cellulose phthalate etc.).
• gastric or enteric material sucrose, gelatin, hydroxypropylcellulose or hydroxypropylmethyl cellulose phthalate etc.
• Capsules include soft ones and hard ones.
• Liquid compositions for oral administration include pharmaceutically-acceptable emulsions, solutions, suspensions, syrups and elixirs.
• one or more of the active compound(s) is or are comprise in inert diluent(s) commonly used in the art (purified water, ethanol etc.).
• compositions may also comprise adjuvants (wetting agents, suspending agents etc.), sweetening agents, flavouring agents, perfuming agents and preserving agents.
• compositions for oral administration include spray compositions which may be prepared by known methods and which comprise one or more of the active compound(s).
• Spray compositions may comprise additional substances other than inert diluents: e.g. stabilizing agents (sodium sulfite etc.), isotonic buffer (sodium chloride, sodium citrate, citric acid etc.).
• stabilizing agents sodium sulfite etc.
• isotonic buffer sodium chloride, sodium citrate, citric acid etc.
• Injections for parenteral administration include sterile aqueous or non-aqueous solutions, suspensions and emulsions.
• one or more of active compound(s) is or are admixed at least one of inert aqueous diluent(s) (distilled water for injection, physiological salt solution etc.) or inert non-aqueous diluent(s) (propylene glycol, polyethylene glycol, olive oil, ethanol, POLYSOLBATE 80 (registered trade mark) etc.).
• Injections may comprise additional other than inert diluents: e.g. preserving agents, wetting agents, emulsifying agents, dispersing agents, stabilizing agents (lactose etc.), assisting agents such as assisting agents for dissolving (glutamic acid, aspertic acid etc.).
• inert diluents e.g. preserving agents, wetting agents, emulsifying agents, dispersing agents, stabilizing agents (lactose etc.), assisting agents such as assisting agents for dissolving (glutamic acid, aspertic acid etc.).
• They may be sterilized, for example, by filtration through a bacteria-retaining filter, by incorporation of sterilizing agents in the compositions or by irradiation. They also be manufactured in the form of sterile solid compositions, for example, by freeze-drying, and which can be dissolved in sterile water or some other sterile diluents for injection immediately before used.
• compositions for parenteral administration include liquids for external use, and endermic liniments (ointment etc.), suppositories and pessaries which comprise one or more of the active compound(s) and may be prepared by known methods.
• compositions for dermal administration especially for the treatment and prevention of alopecia and acne, include liquids for external use such as lotion, tonic, spray, solution, suspension, emulsion and liniments such as ointment, gel, cream.
• compositions may comprise one or more of active ingredient(s) and at least one of inert diluent(s), for example, distilled water, lower alcohols such as ethanol, higher alcohols such as cetanol, poly alcohols such as polyethylene glycol, propylene glycol, celluloses such as hydroxypropyl cellulose, animal or plant fats, vaseline, wax, silicone, plant oil such as olive oil, surfactants, zinc oxide etc.
• inert diluent(s) for example, distilled water, lower alcohols such as ethanol, higher alcohols such as cetanol, poly alcohols such as polyethylene glycol, propylene glycol, celluloses such as hydroxypropyl cellulose, animal or plant fats, vaseline, wax, silicone, plant oil such as olive oil, surfactants, zinc oxide etc.
• composition may also comprise adjuvants (wetting agents, suspending agents, perfuming agents, preserving agents.
• adjuvants wetting agents, suspending agents, perfuming agents, preserving agents.
• IR ⁇ 3050, 1750, 1580, 1560, 1510, 1445, 1260, 1090, 1020, 740 cm -1 .
• the following components were admixed in conventional method and punched out to obtain 100 tablets each containing 50 mg of active ingredient.

Landscapes

• Health & Medical Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Veterinary Medicine (AREA)
• Public Health (AREA)
• General Health & Medical Sciences (AREA)
• Animal Behavior & Ethology (AREA)
• Chemical & Material Sciences (AREA)
• Organic Chemistry (AREA)
• Epidemiology (AREA)
• Medicinal Chemistry (AREA)
• Pharmacology & Pharmacy (AREA)
• Dermatology (AREA)
• Birds (AREA)
• Chemical Kinetics & Catalysis (AREA)
• General Chemical & Material Sciences (AREA)
• Engineering & Computer Science (AREA)
• Bioinformatics & Cheminformatics (AREA)
• Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
• Emergency Medicine (AREA)
• Endocrinology (AREA)
• Reproductive Health (AREA)
• Urology & Nephrology (AREA)
• Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
• Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
• Cosmetics (AREA)
• Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Applications Claiming Priority (4)

Publications (1)

Family

ID=26451734

Family Applications (1)

Country Status (7)

Cited By (9)

Families Citing this family (13)

Citations (5)

Family Cites Families (1)

• 1988
  • 1988-05-06 DE DE8888304120T patent/DE3872937T2/de not_active Expired - Fee Related
  • 1988-05-06 EP EP88304120A patent/EP0291245B1/de not_active Expired - Lifetime
  • 1988-05-06 ES ES88304120T patent/ES2051843T3/es not_active Expired - Lifetime
  • 1988-05-06 US US07/191,193 patent/US4980372A/en not_active Expired - Fee Related
  • 1988-05-09 KR KR1019880005407A patent/KR970006891B1/ko active IP Right Grant
  • 1988-05-11 JP JP63112386A patent/JPH0657685B2/ja not_active Expired - Fee Related
• 1992
  • 1992-09-30 GR GR920402169T patent/GR3005835T3/el unknown

Patent Citations (5)

Also Published As

Similar Documents

Legal Events